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pro vyhledávání: '"Alford, J. A. J."'
Autor:
Alford, J. A. J., Younes, G. A., Wadiasingh, Z., Abdelmaguid, M., An, H., Bachetti, M., Baring, M., Beloborodov, A., Chen, A. Y., Enoto, T., García, J. A., Gelfand, J. D., Gotthelf, E. V., Harding, A., Hu, C. -P., Jaodand, A. D., Kaspi, V., Kim, C., Kouveliotou, C., Kuiper, L., Mori, K., Nynka, M., Park, J., Stern, D., Valverde, J., Walton, D.
The hard X-ray emission from magnetars and other isolated neutron stars remains under-explored. An instrument with higher sensitivity to hard X-rays is critical to understanding the physics of neutron star magnetospheres and also the relationship bet
Externí odkaz:
http://arxiv.org/abs/2311.04739
Autor:
Alford, J. A. J., Halpern, J. P.
Only three of the dozen central compact objects (CCOs) in supernova remnants (SNRs) show thermal X-ray pulsations due to non-uniform surface temperature (hot-spots). The absence of X-ray pulsations from several unpulsed CCOs has motivated suggestions
Externí odkaz:
http://arxiv.org/abs/2302.05893
The surface temperature distributions of central compact objects (CCOs) are powerful probes of their crustal magnetic field strengths and geometries. Here we model the surface temperature distribution of RX J0822$-$4300, the CCO in the Puppis A super
Externí odkaz:
http://arxiv.org/abs/2112.12311
Autor:
Borghese, A., Rea, N., Turolla, R., Rigoselli, M., Alford, J. A. J., Gotthelf, E. V., Burgay, M., Possenti, A., Zane, S., Zelati, F. Coti, Perna, R., Esposito, P., Mereghetti, S., Viganó, D., Tiengo, A., Götz, D., Ibrahim, A., Israel, G. L., Pons, J., Sathyaprakash, R.
After 15 years, in late 2018, the magnetar XTE J1810-197 underwent a second recorded X-ray outburst event and reactivated as a radio pulsar. We initiated an X-ray monitoring campaign to follow the timing and spectral evolution of the magnetar as its
Externí odkaz:
http://arxiv.org/abs/2104.11083
Autor:
Gotthelf, E. V., Halpern, J. P., Alford, J. A. J., Mihara, T., Negoro, H., Kawai, N., Dai, S., Lower, M. E., Johnston, S., Bailes, M., Oslowski, S., Camilo, F., Miyasaka, H., Madsen, K. K.
We present the earliest X-ray observations of the 2018 outburst of XTE J1810-197, the first outburst since its 2003 discovery as the prototypical transient and radio-emitting anomalous X-ray pulsar (AXP). The Monitor of All-sky X-ray Image (MAXI) det
Externí odkaz:
http://arxiv.org/abs/1902.08358
Autor:
Alford, J. A. J.1 alford@nyu.edu, Younes, G. A.2, Wadiasingh, Z.3,4,5, Abdelmaguid, M.1, An, H.6, Bachetti, M.7, Baring, M. G.8, Beloborodov, A.9, Chen, A. Y.10, Enoto, T.11, García, J. A.12, Gelfand, J. D.1, Gotthelf, E. V.9, Harding, A. K.13, Hu, C-P.14, Jaodand, A. D.15, Kaspi, V.16, Kim, C.6, Kouveliotou, C.2, Kuiper, L.17
Publikováno v:
Frontiers in Astronomy & Space Sciences. 2024, p01-14. 14p.
Autor:
Camilo, F., Ransom, S. M., Halpern, J. P., Alford, J. A. J., Cognard, I., Reynolds, J. E., Johnston, S., Sarkissian, J., van Straten, W.
We report on timing, flux density, and polarimetric observations of the transient magnetar and 5.54 s radio pulsar XTE J1810-197 using the GBT, Nancay, and Parkes radio telescopes beginning in early 2006, until its sudden disappearance as a radio sou
Externí odkaz:
http://arxiv.org/abs/1603.02170
Akademický článek
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Autor:
Borghese, A, Rea, N, Turolla, R, Rigoselli, M, Alford, J A J, Gotthelf, E V, Burgay, M, Possenti, A, Zane, S, Coti Zelati, F, Perna, R, Esposito, P, Mereghetti, S, Viganò, D, Tiengo, A, Götz, D, Ibrahim, A, Israel, G L, Pons, J, Sathyaprakash, R
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 7/15/2021, Vol. 504 Issue 4, p5244-5257, 14p
Akademický článek
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